Just a thought. Do you have the animations disabled in the developer options? Some people needed to enable them back and reboot the phone for the new UI tuner to work.
I'm in Developer Options now but I'm not exactly sure what to change. Is it under the header "Drawing" and if so, do the following things need to be changed?:
And you're swiping down the notification panel on the homescreen, right? Pressing the settings gear icon at the top of the screen? Does it even start spinning at all?